Build Your Own AI Project Worksheet

AI for students lesson 23: Design a tiny AI project · Set 246 · 40 questions

AI tip (Accuracy = correct ÷ total × 100): Steps: 1 choose a problem → 2 collect examples → 3 label them → 4 check and correct bad labels (clean the data) → 5 split into training and test sets → 6 train → 7 test with new examples → 8 measure accuracy → 9 improve the data and retest. Accuracy = correct ÷ total × 100. Wrong = total − correct. Expected right = accuracy ÷ 100 × total. Keep some examples apart for testing (for example one fifth); the rest are for training.

1. 1.🧪 Your fruit sorter mixes up oranges and lemons. What helps most? (a) a louder speaker (b) a new colour screen (c) fewer examples (d) more labelled examples
2. 2.🧪 Why must you test a model on examples it has NOT seen? (a) to make it bigger (b) to save paper (c) to see if it learned (d) to make it faster
3. 3.⚖️ Two fruit sorter models were tested on the same 20 fruit photos. Model A got 18 right and Model B got 15 right. How many percentage points more accurate is Model A?
4. 4.📦 Aarav collected 80 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
5. 5.❌ Nisha’s recycling sorter was tested on 20 new waste photos and got 12 right. How many did it get wrong?
6. 6.🧪 What is accuracy? (a) correct + total (b) correct ÷ total × 100 (c) total − correct (d) total × 2
7. 7.🧪 You can plan a simple AI project with… (a) paper and examples (b) only a big robot (c) nothing at all (d) a secret password
8. 8.📦 Arjun collected 180 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
9. 9.📋 Planning an AI project: which comes first — improve data, retest or choose what to sort? (a) improve data, retest (b) choose what to sort
10. 10.📋 Planning an AI project: which comes first — gather many examples or calculate percent right? (a) gather many examples (b) calculate percent right
11. 11.📋 Planning an AI project: which comes first — work out the accuracy or split train and test? (a) work out the accuracy (b) split train and test
12. 12.🎯 Nisha’s leaf identifier was tested on 20 new leaf photos and got 19 right. What is its accuracy in percent?
13. 13.🎯 Diya’s handwriting reader was tested on 4 new handwritten letters and got 4 right. What is its accuracy in percent?
14. 14.📦 Nisha collected 70 labelled handwritten letters for a handwriting reader and keeps one fifth of them for testing. How many are left for training?
15. 15.📋 Planning an AI project: which comes first — test on new photos or choose what to sort? (a) test on new photos (b) choose what to sort
16. 16.🎯 Arjun’s leaf identifier is 80% accurate. If it is tested on 20 new leaf photos, how many should it get right?
17. 17.🎯 Vihaan’s spam spotter was tested on 4 new messages and got 4 right. What is its accuracy in percent?
18. 18.❌ Arjun’s fruit sorter was tested on 46 new fruit photos and got 39 right. How many did it get wrong?
19. 19.⚖️ Two recycling sorter models were tested on the same 10 waste photos. Model A got 8 right and Model B got 6 right. How many percentage points more accurate is Model A?
20. 20.📋 Planning an AI project: which comes first — pick a question to solve or improve data, retest? (a) pick a question to solve (b) improve data, retest
21. 21.🎯 Meera’s leaf identifier is 50% accurate. If it is tested on 70 new leaf photos, how many should it get right?
22. 22.⚖️ Two bird-song app models were tested on the same 25 bird songs. Model A got 25 right and Model B got 15 right. How many percentage points more accurate is Model A?
23. 23.⚖️ Two fruit sorter models were tested on the same 10 fruit photos. Model A got 10 right and Model B got 5 right. How many percentage points more accurate is Model A?
24. 24.🎯 Arjun’s fruit sorter was tested on 10 new fruit photos and got 9 right. What is its accuracy in percent?
25. 25.🎯 Saanvi’s recycling sorter was tested on 10 new waste photos and got 6 right. What is its accuracy in percent?
26. 26.📋 Planning an AI project: which comes first — try unseen examples or recheck every label? (a) try unseen examples (b) recheck every label
27. 27.📋 Planning an AI project: which comes first — work out the accuracy or improve data, retest? (a) work out the accuracy (b) improve data, retest
28. 28.📦 Kabir collected 170 labelled bird songs for a bird-song app and keeps one fifth of them for testing. How many are left for training?
29. 29.📋 Planning an AI project: which comes first — work out the accuracy or correct bad labels? (a) work out the accuracy (b) correct bad labels
30. 30.🎯 Kabir’s handwriting reader was tested on 50 new handwritten letters and got 29 right. What is its accuracy in percent?
31. 31.⚖️ Two fruit sorter models were tested on the same 50 fruit photos. Model A got 33 right and Model B got 28 right. How many percentage points more accurate is Model A?
32. 32.📦 Kabir collected 50 labelled waste photos for a recycling sorter and keeps one fifth of them for testing. How many are left for training?
33. 33.🎯 Rohan’s fruit sorter is 60% accurate. If it is tested on 60 new fruit photos, how many should it get right?
34. 34.❌ Kabir’s spam spotter was tested on 37 new messages and got 35 right. How many did it get wrong?
35. 35.🎯 Ishaan’s recycling sorter is 90% accurate. If it is tested on 100 new waste photos, how many should it get right?
36. 36.🎯 Kabir’s leaf identifier was tested on 20 new leaf photos and got 13 right. What is its accuracy in percent?
37. 37.📋 Planning an AI project: which comes first — train the model or pick a question to solve? (a) train the model (b) pick a question to solve
38. 38.🎯 Rohan’s spam spotter was tested on 20 new messages and got 12 right. What is its accuracy in percent?
39. 39.⚖️ Two recycling sorter models were tested on the same 20 waste photos. Model A got 20 right and Model B got 19 right. How many percentage points more accurate is Model A?
40. 40.⚖️ Two handwriting reader models were tested on the same 20 handwritten letters. Model A got 16 right and Model B got 15 right. How many percentage points more accurate is Model A?

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